How pine cones open

@article{Dawson1997HowPC,
  title={How pine cones open},
  author={C. Dawson and J. Vincent and A. Rocca},
  journal={Nature},
  year={1997},
  volume={390},
  pages={668-668}
}
  • C. Dawson, J. Vincent, A. Rocca
  • Published 1997
  • Environmental Science
  • Nature
  • The scales of seed-bearing pine cones move in response to changes in relative humidity. The scales gape open when it is dry, releasing the cone's seeds. When it is damp, the scales close up. The cells in a mature cone are dead, so the mechanism is passive: the structure of the scale and the walls of the cells composing the scale respond to changing relative humidity. Dissection of cones from the Monterey pine, Pinus radiata, revealed to us two types of scale growing from the main body of the… CONTINUE READING
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